My review:

Cybertronian jet-thingy mode:









Not much to say really except that they really nailed this one. It captures the 80's space vehicle design perfectly, right down to the bold ignorance of how aircraft's actually work. The stubby wings are compensated with humongous thrusters on the back, 4 of them to boot. The color scheme is perfect and the paint apps well executed. The wings are only soft-locked by detent. I wish there was a more solid locking mechanism but it's a really minor gripe.

Titan Master dude

It's a new mold he will be sharing with Twin Twist's little TM dude. I also like how combined gun looks like an engine block.

Transformation
His upper body transformation is an unlock and twist trick similar to Triggerhappy's, and the arms form solid chunks to fill in the space where the front intake thingies used to be. Very intuitive and satisfying.

'Bot mode



I never had the G1 Jump starters but this robot looks to be a great update to an 80's robot design. The molded details on the chest, shoulders and forearms are all there. I'd imagine people who owned Topspin back then would look at this robot with a smile, just like I did when I held Combiner Wars First Aid for the very first time. I also like how he's slightly bigger than your average deluxe figure with a powerful looking build. His thighs are huuuge! They're even bigger than some of the voyager figures'. The paint on his eyes is a nice metallic blue. All the joints are solid and tolerance spot on. The wings sort of just hang there off his arms, which is toy accurate, but same with the jet mode, I do wish they have a locking point. Due to how the hinge is designed, you can't fold them all the way back either like you can with Twin Twist' treads.




Articulation is above average, as he has double-jointed elbows thanks to transformation.



Overall
Deluxe Wave 4 turns out be a big win for me as all three new molds are excellent, but this one is my favorite. I'm confident to say Topspin will be on a few people's figure of the year list, and I can't wait to get his twin brother, as Twin Twist looks like a great remold.